Sarah Obama, a devout Muslim, was quoted telling Obama Jr. “What your grandfather respected was strength. Discipline. This is also why he rejected the Christian religion, I think. For a brief time he converted [to Christianity], and even changed his name to Johnson. But he could not understand such ideas as mercy towards your enemies, or that this man Jesus could wash away a man’s sins. To your grandfather, this was a foolish sentiment, something to comfort women. And so he converted to Islam-he thought its practices conformed more closely to his beliefs.”
Obama Jr’s grandfather, for whom he was given the middle name, Hussein, was “fiercely devoted to Islam.” He had at least 3 wives: Helima, who had no children, Akuma who gave birth to Sarah Obama, Barack Hussein Obama, Sr. and Auma Obama. The third wife was Sarah, who Obama Jr. refers to as his “grandmother.” Sarah became the primary care giver for Senior after his mother, Akuma, left the family when her children were still young.
At 18, Obama Jr’s father, Barack Obama Sr. (Senior), married a girl called Kezia from a local village.
http://www.usvetdsp.com/jan08/obama_lou%20tribe.htm